Here is similar query, maybe helpful:
$unit = ($unit == 'km') ? 1.609344 : 1 ;
$results = $this->Location->find('all', array(
'limit' => 100,
'order' => array(
'distance' => 'ASC',
'Location.name' => 'ASC',
),
'recursive' => -1,
'conditions' => '1 = 1 HAVING `distance` <= 50' ,
'fields' => "*, TRUNCATE((3958 * 3.1415926 * SQRT((`lat` - {$lat}) *
(`lat` - {$lat}) + COS(`lat` / 57.29578) * COS({$lat} / 57.29578) * (`lng` -
{$lng}) * (`lng` - {$lng})) / 180) * 1.609344, 5) AS `distance`"
));
Or you could foreach your results and move from ,classifications to Locations...
Andras Kende
http://www.kende.com
On Oct 16, 2012, at 6:43 PM, bmcelhany <[email protected]> wrote:
> Unfortunately, that didn't change anything.
>
> On Tuesday, October 16, 2012 5:10:30 PM UTC-7, cricket wrote:
> Try adding the model alias:
>
> AND (Location.classification_id = $classification_id)
>
> On Tue, Oct 16, 2012 at 7:42 PM, bmcelhany <[email protected]> wrote:
> > Hello,
> >
> > I have a model (Location) that points to a view (locations) in MySQL. The
> > view contains address, zip code and latitude/longitude data that I use to
> > calculate the distance between two locations (or find all locations within
> > a
> > given radius from a particular zip code).
> >
> > In my model, I have a function that takes 3 parameters: a zip code, a
> > classification id and a specialty id. Using those three parameters, I
> > construct a sql string ($sql), call $this->query($sql) and return the
> > resulting array. The reason I simply don't call the model's standard
> > $this->find() method is because, in addition to the fields from the
> > database
> > view, I need to perform a huge and ugly calculation to determine the number
> > of miles each record's zip code is from the zip code passed in to the
> > function. I'm using this as a virtual field in the model called "Miles".
> >
> > At any rate, this is mostly working but I'm noticing some strange behavior
> > with how the resulting array is structured. Any time I add something to the
> > WHERE clause of my sql statement and have an ORDER BY clause in the sql
> > statement, those items are returned in an array that is separate from my
> > expected Location array. If I don't add any fields to my WHERE clause,
> > everything is returned as expected (just with no filters applied to the
> > result set). Oddly, if I remove the ORDER BY clause everything works fine
> > too. It's only when I ORDER BY my Miles virtual field AND have stuff in my
> > WHERE clause that things start to break.
> >
> > I should note too, that when I look at the actual query that is being run
> > and copy it into MySQL, it runs fine and returns the correct results.
> >
> > Here is the relavant code ($lat_lon['lat'] and $lat_lon['lon'] are from a
> > local array and are returning the correct numbers):
> >
> > -----------------------------------------------------------------
> >
> > $this->virtualFields['Miles'] = 0;
> >
> > $sql = "SELECT "
> > ."Location.classification_id, "
> > ."Location.classification_name, "
> > ."Location.first_name, "
> > ."Location.last_name, "
> > ."Location.suffix, "
> > ."Location.title, "
> > ."Location.specialty_id, "
> > ."Location.specialty_name, "
> > ."Location.specialty_ame, "
> > ."Location.specialty_pr4, "
> > ."Location.address_id, "
> > ."Location.address, "
> > ."Location.city, "
> > ."Location.state, "
> > ."Location.zip, "
> > ."Location.address_ame, "
> > ."Location.address_pr4, "
> > ."Location.zip_code, "
> > ."Location.lat, "
> > ."Location.lon, "
> > ."(3956 * 2 * ATAN2(SQRT(POW(SIN((RADIANS(".$lat_lon['lat'].") - "
> > .'RADIANS(Location.lat)) / 2), 2) + COS(RADIANS(Location.lat)) * '
> > ."COS(RADIANS(".$lat_lon['lat'].")) * POW(SIN((RADIANS(".$lat_lon['lon'].")
> > - "
> > ."RADIANS(Location.lon)) / 2), 2)), SQRT(1 -
> > POW(SIN((RADIANS(".$lat_lon['lat'].") - "
> > ."RADIANS(Location.lat)) / 2), 2) + COS(RADIANS(Location.lat)) * "
> > ."COS(RADIANS(".$lat_lon['lat'].")) * POW(SIN((RADIANS(".$lat_lon['lon'].")
> > - "
> > ."RADIANS(Location.lon)) / 2), 2)))) AS Location__Miles "
> > ."FROM locations AS Location "
> > ."WHERE "
> > ."(lat BETWEEN ROUND({$lat_lon['lat']} - (25 / 69.172), 4) "
> > ."AND ROUND({$lat_lon['lat']} + (25 / 69.172), 4) "
> > ."AND lon BETWEEN ROUND({$this->lon} - ABS(25 / COS({$lat_lon['lat']}) *
> > 69.172)) "
> > ."AND ROUND({$lat_lon['lon']} + ABS(25 / COS({$lat_lon['lat']}) * 69.172))
> > "
> > ."AND 3956 * 2 * ATAN2(SQRT(POW(SIN((RADIANS({$lat_lon['lat']}) - "
> > ."RADIANS(Location.lat)) / 2), 2) + COS(RADIANS(Location.lat)) * "
> > ."COS(RADIANS({$lat_lon['lat']})) * POW(SIN((RADIANS({$lat_lon['lon']}) - "
> > ."RADIANS(Location.lon)) / 2), 2)), SQRT(1 -
> > POW(SIN((RADIANS({$lat_lon['lat']}) - "
> > ."RADIANS(Location.lat)) / 2), 2) + COS(RADIANS(Location.lat)) * "
> > ."COS(RADIANS({$lat_lon['lat']})) * POW(SIN((RADIANS({$lat_lon['lon']}) - "
> > ."RADIANS(Location.lon)) / 2), 2))) <= $miles "
> > ."AND 3956 * 2 * ATAN2(SQRT(POW(SIN((RADIANS({$lat_lon['lat']}) - "
> > ."RADIANS(Location.lat)) / 2), 2) + COS(RADIANS(Location.lat)) * "
> > ."COS(RADIANS({$lat_lon['lat']})) * POW(SIN((RADIANS({$lat_lon['lon']}) - "
> > ."RADIANS(Location.lon)) / 2), 2)), SQRT(1 -
> > POW(SIN((RADIANS({$lat_lon['lat']}) - "
> > ."RADIANS(Location.lat)) / 2), 2) + COS(RADIANS(Location.lat)) * "
> > ."COS(RADIANS({$lat_lon['lat']})) * POW(SIN((RADIANS({$lat_lon['lon']}) - "
> > ."RADIANS(Location.lon)) / 2), 2))) >= 0) "
> > ."AND (classification_id = $classification_id) ";
> >
> > if(!empty($specialty_id)) {
> > $sql .= "AND (specialty_id = $specialty_id) ";
> > $criteria['Specialty'] = $specialty_name;
> > }
> > $sql .= "ORDER BY Location__Miles ASC";
> > $foundData = $this->query($sql);
> > echo pr($foundData);
> >
> > -----------------------------------------------------------------
> > The $foundData array looks like:
> >
> > Array
> > (
> > [0] => Array
> > (
> > [classifications] => Array
> > (
> > [classification_id] => 1
> > [classification_name] => AME
> > )
> >
> > [Location] => Array
> > (
> > [first_name] => John
> > [last_name] => Doe
> > [suffix] =>
> > [title] => PHD
> > [specialty_ame] => 1
> > [specialty_pr4] => 1
> > [address_id] => 32
> > [address] => 123 Main St. Suite 100
> > [city] => Sacramento
> > [state] => CA
> > [zip] => 94203
> > [address_ame] => 1
> > [address_pr4] => 1
> > [zip_code] => 94203
> > [lat] => 38.5844
> > [lon] => -121.494
> > [Miles] => 0.00017830548973979952
> > )
> > .
> > .
> > .
> > But SHOULD look like:
> >
> > Array
> > (
> > [0] => Array
> > (
> > [Location] => Array
> > (
> > [classification_id] => 1
> > [classification_name] => AME
> > [first_name] => John
> > [last_name] => Doe
> > [suffix] =>
> > [title] => PHD
> > [specialty_ame] => 1
> > [specialty_pr4] => 1
> > [address_id] => 32
> > [address] => 123 Main St. Suite 100
> > [city] => Sacramento
> > [state] => CA
> > [zip] => 94203
> > [address_ame] => 1
> > [address_pr4] => 1
> > [zip_code] => 94203
> > [lat] => 38.5844
> > [lon] => -121.494
> > [Miles] => 0.00017830548973979952
> > )
> > .
> > .
> > .
> >
> > If I comment out the line that reads: ."AND (classification_id =
> > $classification_id) "; it works fine (no classification_id filter, but the
> > array is structured correctly). Also, if I comment out the $sql .= "ORDER
> > BY
> > Location__Miles ASC"; line it works fine (filters are all in place and
> > things are structured correctly, but I need the results ordered by
> > distance). I just can't use them together.
> >
> > It seems like this should just work...what am I missing here? Any help is
> > greatly appreciated!!!
> >
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